{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12903",
    "entityType": "User",
    "nonce": "0x22aa1f4370502d309666ed0d4191c6dc738085f743e9d0bb3984ea260fe3febd",
    "signature": "0xc37e31b78e6a95f74ae1baa8d348b65986d6c8a6d002966e5a886b9f96916d17653952a267911958d6b56d6745bb882d51889cbc2e965d802d7f730f8600ec541b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}